A START release reports that the GDT,
the most comprehensive, unclassified database of terrorist incidents,
now contains information on more than 104,000 domestic and international
terrorist attacks between 1970 and 2011. These attacks resulted in more
than 225,000 deaths and more than 299,000 injuries. These attacks are
defined as the threatened or actual use of illegal force and violence by
a non-state actor to attain a political, economic, religious, or social
goal through fear, coercion, or intimidation.

The top five most active perpetrator groups of terrorist attacks in 2011 were:

Communist Party of India - Maoist (CPI-M)

Taliban

al-Shabaab

Boko Haram

Revolutionary Armed Forces of Colombia (FARC)

[...]

I know the current POTUS would have us all believe that terrorists no longer exist, and that we all live in a world of unicorns and rainbows, BUT go read the rest of this one here, and PAY ATTENTION!